86843872 has 12 divisors (see below), whose sum is σ = 170973936. Its totient is φ = 43421920.

The previous prime is 86843857. The next prime is 86843873. The reversal of 86843872 is 27834868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86843873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1356904 + ... + 1356967.

It is an arithmetic number, because the mean of its divisors is an integer number (14247828).

Almost surely, 2^86843872 is an apocalyptic number.

It is an amenable number.

86843872 is a deficient number, since it is larger than the sum of its proper divisors (84130064).

86843872 is a wasteful number, since it uses less digits than its factorization.

86843872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2713881 (or 2713873 counting only the distinct ones).

The product of its digits is 516096, while the sum is 46.

The square root of 86843872 is about 9319.0059555727. The cubic root of 86843872 is about 442.8395419198.

The spelling of 86843872 in words is "eighty-six million, eight hundred forty-three thousand, eight hundred seventy-two".